PILOT SCALE ANODIC OXIDATION OF PRETREATED VINASSE USING BORON DOPED DIAMOND ELECTRODES

被引：11

作者：

Alvarez-Pugliese, Christian E. ^{[1
]}

Martinez-Hernandez, Lilibeth ^{[1
]}

Imbachi-Ordonez, Stephania ^{[1
]}

Marriaga-Cabrales, Nilson ^{[1
]}

Machuca-Martinez, Fiderman ^{[1
]}

机构：

[1] Univ Valle, Chem Engn Sch, Cali, Colombia

来源：

CT&F-CIENCIA TECNOLOGIA Y FUTURO | 2016年 / 6卷 / 04期

关键词：

BDD; Electrochemical Oxidation; Distillery Wastewater; Ethanol; Electrochemistry;

D O I：

10.29047/01225383.04

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The anodic oxidation of pretreated vinasse was studied using boron doped diamond (BDD) electrodes at laboratory and pilot scale. In the first stage, two different current densities (60 and 100 mA cm(-2)) were applied to the cell at different flow rates to confirm that the process was controlled by mass transfer. Assays at different initial pH were performed, finding that this variable does not significantly affect the mineralization of organic pollutants. Three current densities (35, 60 and 100 mA cm(-2)) were tested at the 25 dm(3) pilot scale setup. Also, two different electrolytes (Na2SO4 and NaCl) were used to study the effect of electro-generated oxidant species. The results confirm that the recalcitrant organic compounds that produce the dark brown color on vinasse, like the melanoidins can be effectively treated by the electrochemical oxidation process using BDD electrodes at a pilot scale, with an energy consumption below 50 kWh m(-3).

引用

页码：67 / 78

页数：12

共 25 条

[1]

Alvarez-Pugliese C. E., 2014, EVALUATION ELECTROCH

[2]

Alvarez-Pugliese CE, 2011, J ADV OXID TECHNOL, V14, P213

[3] Color removal of melanoidin-rich industrial effluent by natural manganese oxides [J].